Metro-Goldwyn-Mayer presents a Sol C. Siegel Production ; screen play by Ranald MacDougall ; screen story by Ferdinand Reyher ; produced by George Englund ; directed by Ranald MacDougall
M-G-M ; screen play by Cyril Hume ; directed by Fred McLeod Wilcox ; produced by Nicholas Nayfack. The invisible boy / Pan Productions ; produced by Nicholas Nayfack ; screen play by Cyril Hume ; directed by Herman Hoffman